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Fridell JA, Niederhaus S, Curry M, Urban R, Fox A, Odorico J. The survival advantage of pancreas after kidney transplant. Am J Transplant 2019; 19:823-830. [PMID: 30188614 DOI: 10.1111/ajt.15106] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 08/07/2018] [Accepted: 08/12/2018] [Indexed: 01/25/2023]
Abstract
Patient survival after pancreas after kidney transplant (PAK) has been reported to be inferior to patient survival after simultaneous pancreas-kidney transplant (SPK). The authors examine national data to further explore allograft (kidney and pancreas) and patient survival after PAK. Kaplan-Meier and Cox proportional hazard models were used to analyze Organ Procurement and Transplantation Network data from 1995 to 2010. The analysis compared PAK and SPK candidates and recipients. Kaplan-Meier analysis results showed that PAK after either a living or a deceased donor kidney transplant is associated with increased kidney graft survival compared with recipients with type 1 diabetes who received only a kidney. The best kidney allograft survival was for patients who received a living donor kidney followed by PAK. Receiving a living donor kidney was associated with increased pancreas allograft survival compared with receiving a deceased donor kidney. PAK transplant recipients who receive both organs have a survival advantage compared with uremic candidates who receive neither (SPK waitlist). Compared with uremic diabetic waitlist patients, SPK and PAK recipients showed similar overall patient survival. Successful PAK offers a survival advantage compared with receiving neither a kidney nor a pancreas transplant. These data also suggest that receiving a pancreas (after kidney) transplant may have a protective effect on the kidney allograft.
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Affiliation(s)
- Jonathan A Fridell
- Department of Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Silke Niederhaus
- Department of Surgery, University of Maryland Medical Center, Baltimore, MD, USA
| | | | - Read Urban
- United Network for Organ Sharing, Richmond, VA, USA
| | - Abigail Fox
- United Network for Organ Sharing, Richmond, VA, USA
| | - Jon Odorico
- Department of Surgery, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA
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Zaman F, Abreo KD, Levine S, Maley W, Zibari GB. Pancreatic Transplantation: Evaluation and Management. J Intensive Care Med 2016; 19:127-39. [PMID: 15154994 DOI: 10.1177/0885066604263916] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
More than 2 million people in the United States have type 1 diabetes mellitus. Pancreatic transplantation has emerged as the single most effective means of achieving normal glucose homeostasis in this patient population. Newer immunosuppressive agents and surgical techniques continue to evolve, resulting in improved long-term graft and patient survival. Herein, an understanding of the evaluation, technical aspects, and perioperative management of pancreas transplantation is outlined.
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Affiliation(s)
- Fahim Zaman
- Department of Medicine, Louisiana State University Health Sciences Center, Shreveport, Louisiana71130, USA.
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Moassesfar S, Masharani U, Frassetto LA, Szot GL, Tavakol M, Stock PG, Posselt AM. A Comparative Analysis of the Safety, Efficacy, and Cost of Islet Versus Pancreas Transplantation in Nonuremic Patients With Type 1 Diabetes. Am J Transplant 2016; 16:518-26. [PMID: 26595767 PMCID: PMC5549848 DOI: 10.1111/ajt.13536] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 07/28/2015] [Accepted: 08/15/2015] [Indexed: 01/25/2023]
Abstract
Few current studies compare the outcomes of islet transplantation alone (ITA) and pancreas transplantation alone (PTA) for type 1 diabetes (T1D). We examined these two beta cell replacement therapies in nonuremic patients with T1D with respect to safety, graft function and cost. Sequential patients received PTA (n = 15) or ITA (n = 10) at our institution. Assessments of graft function included duration of insulin independence; glycemic control, as measured by hemoglobin A1c; and elimination of severe hypoglycemia. Cost analysis included all normalized costs associated with transplantation and inpatient management. ITA patients received one (n = 6) or two (n = 4) islet transplants. Mean duration of insulin independence in this group was 35 mo; 90% were independent at 1 year, and 70% were independent at 3 years. Mean duration of insulin independence in PTA was 55 mo; 93% were insulin independent at 1 year, and 64% were independent at 3 years. Glycemic control was comparable in all patients with functioning grafts, as were overall costs ($138 872 for ITA, $134 748 for PTA). We conclude that with advances in islet isolation and posttransplant management, ITA can produce outcomes similar to PTA and represents a clinically viable option to achieve long-term insulin independence in selected patients with T1D.
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Affiliation(s)
- S. Moassesfar
- Pediatrics, University of California, San Francisco, San Francisco, CA
| | - U. Masharani
- Medicine, University of California, San Francisco, San Francisco, CA
| | - L. A. Frassetto
- Medicine, University of California, San Francisco, San Francisco, CA
| | - G. L. Szot
- Transplant Surgery, University of California, San Francisco, San Francisco, CA
| | - M. Tavakol
- Transplant Surgery, University of California, San Francisco, San Francisco, CA
| | - P. G. Stock
- Transplant Surgery, University of California, San Francisco, San Francisco, CA
| | - A. M. Posselt
- Transplant Surgery, University of California, San Francisco, San Francisco, CA
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Posselt AM, Szot GL, Frassetto LA, Masharani U, Tavakol M, Amin R, McElroy J, Ramos MD, Kerlan RK, Fong L, Vincenti F, Bluestone JA, Stock PG. Islet transplantation in type 1 diabetic patients using calcineurin inhibitor-free immunosuppressive protocols based on T-cell adhesion or costimulation blockade. Transplantation 2010; 90:1595-601. [PMID: 20978464 PMCID: PMC4296579 DOI: 10.1097/tp.0b013e3181fe1377] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND The applicability of islet transplantation as treatment for type 1 diabetes is limited by long-term graft dysfunction, immunosuppressive drug toxicity, need for multiple donors, and increased risk of allosensitization. We describe two immunosuppressive regimens based on the costimulation blocker belatacept (BELA) or the antileukocyte functional antigen-1 antibody efalizumab (EFA), which permit long-term islet allograft survival and address some of these concerns. METHODS Ten patients with type 1 diabetes with hypoglycemic unawareness received intraportal allogeneic islet transplants. Immunosuppression consisted of antithymocyte globulin induction and maintenance with sirolimus or mycophenolate and BELA (n=5) or EFA (n=5). RESULTS All five BELA-treated patients achieved independence after single transplants; one resumed partial insulin use 305 days after transplant but is now independent after a second transplant. All five patients treated with EFA achieved independence after one (3/5) or two (2/5) islet transplants and remained independent while on EFA (392-804 days). After EFA was discontinued because of withdrawal of the drug from the market, two patients resumed intermittent insulin use; the others remain independent. No patient in either group developed significant side effects related to the study drugs, and none have been sensitized to alloantigens. All have stable renal function. CONCLUSIONS These two novel immunosuppressive regimens are effective, well tolerated, and the first calcineurin inhibitor/steroid-sparing islet protocols resulting in long-term insulin independence. Although EFA is no longer available for clinical use, these early results demonstrate that a regimen using BELA may be an effective alternative to improve graft function and longevity while minimizing renal and β-cell toxicity.
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Affiliation(s)
- Andrew M Posselt
- Transplant Division, Department of Surgery, University of California, San Francisco, San Francisco, CA 94143-0790, USA.
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Posselt AM, Bellin MD, Tavakol M, Szot GL, Frassetto LA, Masharani U, Kerlan RK, Fong L, Vincenti FG, Hering BJ, Bluestone JA, Stock PG. Islet transplantation in type 1 diabetics using an immunosuppressive protocol based on the anti-LFA-1 antibody efalizumab. Am J Transplant 2010; 10:1870-80. [PMID: 20659093 PMCID: PMC2911648 DOI: 10.1111/j.1600-6143.2010.03073.x] [Citation(s) in RCA: 113] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The applicability of islet transplantation as treatment for type 1 diabetes is limited by renal and islet toxicities of currently available immunosuppressants. We describe a novel immunosuppressive regimen using the antileukocyte functional antigen-1 antibody efalizumab which permits long-term islet allograft survival while reducing the need for corticosteroids and calcineurin inhibitors (CNI). Eight patients with type 1 diabetes and hypoglycemic unawareness received intraportal allogeneic islet transplants. Immunosuppression consisted of antithymocyte globulin induction followed by maintenance with efalizumab and sirolimus or mycophenolate. When efalizumab was withdrawn from the market in mid 2009, all patients were transitioned to regimens consisting of mycophenolate and sirolimus or mycophenolate and tacrolimus. All patients achieved insulin independence and four out of eight patients became independent after single-islet transplants. Insulin independent patients had no further hypoglycemic events, hemoglobin A1c levels decreased and renal function remained stable. Efalizumab was well tolerated and no serious adverse events were encountered. Although long-term follow-up is limited by discontinuation of efalizumab and transition to conventional imunnosuppression (including CNI in four cases), these results demonstrate that insulin independence after islet transplantation can be achieved with a CNI and steroid-free regimen. Such an approach may minimize renal and islet toxicity and thus further improve long-term islet allograft survival.
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Affiliation(s)
- Andrew M. Posselt
- Transplant Surgery, University of California, San Francisco, San Francisco, CA, United States
| | - Melena D. Bellin
- Surgery, University of Minnesota, Minneapolis, MN, United States
| | - Mehdi Tavakol
- Transplant Surgery, University of California, San Francisco, San Francisco, CA, United States
| | - Gregory L. Szot
- Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Lynda A. Frassetto
- Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Umesh Masharani
- Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Robert K. Kerlan
- Interventional Radiology, University of California, San Francisco, San Francisco, CA, United States
| | - Lawrence Fong
- Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Flavio G. Vincenti
- Medicine, University of California, San Francisco, San Francisco, CA, United States
| | | | - Jeffrey A. Bluestone
- Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Peter G. Stock
- Transplant Surgery, University of California, San Francisco, San Francisco, CA, United States
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Fridell JA, Mangus RS, Hollinger EF, Taber TE, Goble ML, Mohler E, Milgrom ML, Powelson JA. The case for pancreas after kidney transplantation. Clin Transplant 2009; 23:447-53. [DOI: 10.1111/j.1399-0012.2009.00996.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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